China Clipper, a Nick Grant Adventure

It's September, 1935, and senior year is tough for Nick Grant. He'd spent months building Pacific island bases for Pan Am's great flying boats, the Clippers. Life aboard the supply ship, piloting the Clipper, and fighting Japanese spies makes life at Alameda High School dull. At least his part-time job at Pan Am's Clipper base provides some relief from the monotonous routine of high school.
Suddenly, a series of strange accidents cast suspicion on Nick and a Japanese-American mechanic who has become Nick's mentor. Has Japanese master spy Miyazaki returned to threaten the Clippers? Only Nick's quick thinking had intervened and stopped Miyazaki in the earlier attempts to destroy the flying boats. If the spy has returned, Nick will need help in stopping him--but from whom? The FBI ignores his suspicions and most of his co-workers think Nick is imagining things just to get attention. Then two new teens enter his life and things only get worse.